keyvalue = {"name" : "lilei", "weight": 10, "age": 5, "list" : [1,2,3,4,5]}
for k,v in keyvalue.items():
    print(f"key = {k}, value = {v}")

for k in sorted(keyvalue.keys()):
     print(f"key = {k}")

for v in keyvalue.values():
     print(f"value = {v}")